According To Sources/Research They Say It's:
Proven, patented, being tuned right now for retail use
They say that this technology works and is proven with proof you can actually touch (tangible results and duplicated successful and tractable/predictable results), but the teams are working on "tuning" the technology up before releasing it to the general public for safety. The actual device is ready to use and the inventor has used it for a year with success. The last report stated they are renting the device in the USA only, but I haven't been able to find out where or what the root site for the device is (if you find it please comment with the url).
This technology was invented in Canada and will soon be available world wide (when they figure out a way to package it for safety, it's likely it will be available to dentists to make sure it's used properly first and evolved later). It is a very inexpensive device although I'm sure it will upset many dentists and orthodontics as it will make fillings, and prosthetic teeth a thing of the past.
Healing time does take some time, apparently for a tooth to fully grow it takes 18 months to a year at 20 minutes a day. Since the device can go in like braces or a removable crown (temporary), it can be put in just before you go to bed and taken out 20 minutes later. There are implantable versions (temporary) as well.
This technology is said to also repair chipped teeth (re-growing the missing chunk area and even replacing the enamel) and can repair itself where one would normally require a filling.
The unit will run on a microchip (see image for actual chip blown up so you can see it) that will actually use artificial intelligence circuitry to make sure the right root areas are being stimulated. It will not be left to chance, the hand held wireless remote unit will receive information from the ultrasonic device in your mouth and can constantly fix, update, and refocus the "beam" for want of a better term.
Maybe there will be an iPhone app that will run it in the retail version, I wouldn't put it past them- those phones are powerful calculators and I can easily see it becoming the computer that feeds data to the chip in the device!
I don't want to regurgitate all the same data everyone else is so I'll leave it at that and give you the links to the best research I've found on this topic below so you can read it directly from them. It's all fascinating. If anyone finds a link to different information please leave the link URL in the comments box below.
One final note, they are also using this technology to regrow bone. Can you imagine re-growing a finger that was chopped off? Repairing bone density and regrowing limbs.. These are some things diabetic patients are getting excited about! There are already ultrasonic portable devices on the market for repairing bone and muscle pain, and even some for anti-aging concepts like wrinkles (tightening up the skin and rejuvenating cells from the inside).